ATV lightbar



FIG. 1 is a perspective view of an ATV lightbar showing the new design;

FIG. 2 is a front view thereof on a reduced scale;

FIG. 3 is a left side view of FIG. 2, right side is a mirror thereof;

FIG. 4 is a top plan view of FIG. 2; and,

FIG. 5 is a bottom plan view of FIG. 2.

The ornamental design for an ATV lightbar, as shown and described.